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Thread: Authentication service cannot retrieve authentication info

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i updated system (ubuntu 10.04) , noticed there kernel update 2.6.32-39. after rebooted apply update tried login , after enter password error message appeared saying "authentication service cannot retrieve authentication info."
tried logging in tty , "incorrect login." have tried make account login automatically error saying "permission denied." added new user , tried login new account , says "permission denied."
or suggestions? able login safe mode root , hadn't edited files.

hi

problem file /etc/shadow ?

permissions on ?

code:
ls -l /etc/shadow
what user ? root console...

code:
grep -i <user_name> /etc/shadow
can su ? root console

code:
su - <user_name>
change <user_name> user name

kind regards


Forum The Ubuntu Forum Community Ubuntu Official Flavours Support General Help [ubuntu] Authentication service cannot retrieve authentication info


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